Question

what is a spectrum? what is the name of the glass shape used to obtain a spectrum?

Answer 1

Its an prism which divides the white light in 7 different colours which is also called VIBGYOR which represents the colours respectively.

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Answer 2

Spectrum is a continuous band of colours as seen in a rainbow produced by separation of the components of light by their different degrees of refraction according to wavelength .

The glass shape used to disperse white light into its constituent colours is a glass prism ..

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